What is the author's style in The Hidden Dimension by Edward T. Hall?

Hall's perspective is obviously that of a scientific observer and researcher. In order to lend credibility to his concepts, hypotheses, and predictions, he must demonstrate that he has engaged in an organized, sequential and thorough analysis and evaluation of the research and studies of ethologists, sociologists, psychologists, and fellow anthropologists. The synthesis of all of this research and study becomes as objective as possible, and he achieves this third-person perspective very well.